Green group launches campaign against idling vehicle engines A newly formed anti-pollution group launched a campaign at a carnival in Victoria Park, Causeway Bay, yesterday to encourage drivers to switch off engines when their vehicles are parked. Clean Air Action Group, led by the New Century Forum political group, numbers car dealers, youth groups and logistics sector representatives among its members. The group urged the government to legislate against idling engines as a means of fighting pollution. Students' earthenware celebrates Earth Day Ceramic works made by 500 primary students went on show in an exhibition at Wetland Park yesterday. The artworks were produced as part of a community project, 'My Soil, My Land', which was co-hosted by the Agriculture, Fisheries and Conservation Department, Wetland Park, Hong Kong Arts Centre and Public Art Hong Kong. The artworks, made by students from Yuen Long and Tin Shui Wai, were designed to celebrate Earth Day and promote wetland conservation. The exhibition runs until May 21. Earth Day is a worldwide event that began in 1970 with the aims of promoting cleaner air and environment. 24 arrested in vice raid Police arrested 16 mainland women and eight men in a two-day anti-vice operation in Mong Kok. Police said the women, aged between 17 and 28, have charged with breaching their conditions of stay. A 21-year-old woman was also charged with soliciting for an immoral purpose. The men, aged 21 to 57, were charged with operating brothels. They will appear in Kwun Tong and Kowloon City courts today. Air rescue for ill hiker A 56-year-old woman who fell ill during a hike with 10 people in Sha Tau Kok was rescued by helicopter. A friend called for help at about 4pm when the woman became dizzy. A Government Flying Service helicopter took her to Pamela Youde Nethersole Eastern Hospital, where she was stable after treatment. Woman fighting for life A 23-year-old woman was in Queen Mary Hospital in critical condition after leaping from the Tai Hang Road flyover in Causeway Bay.